339 citations · 2.3k across the 34 of their papers we have counts for
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Multilayer graphene, Moiré patterns, grain boundaries and defects identified by scanning tunneling microscopy on the m-plane, non-polar surface of SiC
P. Xu, D. Qi, J. K. Schoelz +9
Epitaxial graphene is grown on a non-polar n+ 6H-SiC m-plane substrate and studied using atomic scale scanning tunneling microscopy. Multilayer graphene is found throughout the sur…
Thermal mirror buckling in freestanding graphene locally controlled by scanning tunneling microscopy
M. Neek-Amal, P. Xu, J. K. Schoelz +5
Knowledge of and control over the curvature of ripples in freestanding graphene are desirable for fabricating and designing flexible electronic devices, and recent progress in thes…
Unusual ultralow frequency fluctuations in freestanding graphene
P. Xu, M. Neek-Amal, S. D. Barber +5
Intrinsic ripples in freestanding graphene have been exceedingly difficult to study. Individual ripple geometry was recently imaged using scanning tunneling microscopy, but these m…
Self-Organized Platinum Nanoparticles on Freestanding Graphene
Peng Xu, Lifeng Dong, Mehdi Neek-Amal +8
Freestanding graphene membranes were successfully functionalized with platinum nanoparticles (Pt NPs). High-resolution transmission electron microscopy revealed a homogeneous distr…
Membrane amplitude and triaxial stress in twisted bilayer graphene deciphered using first-principles directed elasticity theory and scanning tunneling microscopy
M. Neek-Amal, P. Xu, D. Qi +7
Twisted graphene layers produce a moiré pattern (MP) structure with a predetermined wavelength for given twist angle. However, predicting the membrane corrugation amplitude for any…
Graphene on hexagonal lattice substrate: Stress and Pseudo-magnetic field
M. Neek-Amal, F. M. Peeters
Moir'e patterns in the pseudo-magnetic field and in the strain profile of graphene (GE) when put on top of a hexagonal lattice substrate are predicted from elasticity theory. %whic…
Graphene on boron-nitride: Moiré pattern in the van der Waals energy
M. Neek-Amal, F. M. Peeters
The spatial dependence of the van der Waals (vdW) energy between graphene and hexagonal boron-nitride (h-BN) is investigated using atomistic simulations. The van der Waals energy b…
Realization of free-standing silicene using bilayer graphene
M. Neek-Amal, A. Sadeghi, G. R. Berdiyorov +1
The available synthesized silicene-like structures have been only realized on metallic substrates which are very different from the standalone buckled silicene, e.g. the Dirac cone…
Electronic structure of graphene hexagonal flake subjected to triaxial stress
M. Neek-Amal, L. Covaci, Kh. Shakouri +1
The electronic properties of a triaxially strained hexagonal graphene flake with either armchair or zig-zag edges are investigated using molecular dynamics simulations and tight-bi…
Electronic properties of graphene nano-flakes: Energy gap, permanent dipole, termination effect and Raman spectroscopy
Sandeep Kumar Singh, M. Neek-Amal, F. M. Peeters
The electronic properties of graphene nano-flakes (GNFs) with different edge passivation is investigated by using density functional theory. Passivation with F and H atoms are cons…